Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Look up some time at the night sky, glinting and humming with all manner of illumination — planes taking off from or ...

The object, a celestial body from another star system, was discovered on Tuesday by the University of Hawaii’s Asteroid Terrestrial-impact Last Alert System, or ATLAS, team. At this point, it remains ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...

You do not have to be an expert astronomer, a composer-master photographer, or even a person who enjoys looking at the galaxy to appreciate the ... you might see a shooting star making its way across ...

It's the so-called "Milky Way season" in the Northern Hemisphere. Here's everything you need to know about viewing the galaxy ...

Arizona is an ideal spot to see the Milky Way thanks to its numerous dark-sky places. Here's the best time to see - and ...

Astronomers using the Green Bank Telescope spotted surprisingly cold, dense hydrogen clouds embedded inside the Milky Way’s ...

Are we living in a cosmic void? New theory suggests our galaxy sits in a giant hole warping the universe's expansion.